Home/CWE/Improper Protection of Alternate Path
Weakness

Improper Protection of Alternate Path

CWE-424 · Class · Draft

The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources.

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Weakness Relationships

Where this weakness sits in the CWE hierarchy. Walk up to broader classes or down to more specific variants.
Parent of this (broader)
ChildOfCWE-638 · Not Using Complete Mediation
ChildOfCWE-693 · Protection Mechanism Failure
Children (more specific)
ParentOfCWE-425 · Direct Request ('Forced Browsing')
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Attack Patterns (CAPEC)

2
How adversaries exploit this weakness, per MITRE CAPEC.
CAPEC-127Directory Indexing
CAPEC-554Functionality Bypass
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CVEs With This Weakness

31
A sample of the 31 CVEs tagged with this weakness.
CVECVE-2026-4913
CVECVE-2026-4270
CVECVE-2026-0237
CVECVE-2025-68939
CVECVE-2025-6250
CVECVE-2025-58079
CVECVE-2025-49163
CVECVE-2025-49162
CVECVE-2025-48828
CVECVE-2025-48827
CVECVE-2025-46655
CVECVE-2025-46654
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Nuclei Scanner Templates

2
Open-source Nuclei templates that detect this weakness class - an actionable scan-for-it pivot. Licensed under the ProjectDiscovery / Nuclei terms.
criticalvBulletin replaceAdTemplate - Remote Code Execution
criticalvBulletin 5.0.0-6.0.3 - Authentication Bypass
External lookups - second-class, for what we don’t hold ourselves
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